【 Weak current College 】 rooms sound reasonable to compete (PK) and valid identification method

Today's entertainment city investors know how to shop around. Some investors to pick "the price of the good things we", or the best audio equipment, almost in place when guangfa decoration "hero posts" for all willing to participate in audio companies or manufacturers to PK.

In order to pick out a good fit for your own site, investors can be described as sound is twenty-one. In the absence of shady, typically by getting a lot of home audio company audio equipment to move to it, in a room or a room each Member according to various good codes, investor organizations of so-called "jury" to hear them sing there, identification of good and bad. This form of PK PK can be described as "soft", and the early domestic martial arts competition — each "Kung Fu Master" all play a routine, the judges to see which style of beautiful, strong actions will give a substantial high score, so let some "colleges embroidered leg" of the videotaped by virtue of action skills, and build for the "national champions".

In fact, the sound of this soft PK and unscientific nor is very reasonable. Because the room size, pattern, decoration materials, etc., are all characteristics of the sound and play is affected, in the absence of reasonable acoustical sound field, most of it is negative. Sometimes, even if the speaker is placed in the same room in different locations, listen and feel.

Maybe some people think: you have tuned equipment can reduce the room defects? Yes, if the speaker sound standards, equalizer or band parametric Equalization of processors and the like, together with the engineering staff of technical clearance, it is, of course, then poor acoustic environment is also possible to put audio sounds good. But very often, the investor in order to save money is impossible to each room to buy a processor, just imagine: rely on a feature simple karaoke merge machines, how can we overcome the room sound field flaw of all kinds, to sound out the best sound quality?

So when the audio equipment selection to fit the characteristics of the room and it will sound very good. But there is sound to "score" to fit their characteristic rooms, so it's voice would be a lot worse.

In addition, the human ear is also aesthetic fatigue, the throat is also tired. When continuous listening and singing for four or five rooms, even the experienced expert, also because of fatigue or depression, and other factors which influence the judgment. If it is divided into several batches, a few days to do more, then eventually PK perhaps more difficult to pick the best sound. Because in reality, people simply unable to remember the beginning days of listening to audio and now hear audio what subtle differences.

Some contractors said: "PK not audio but relations". This dialect is not unreasonable for PK for a few days after a few rounds of some "experts", and the investor's principal even fatigue to a listen to the audio on the nerves. Some charge a beginning investor hopes more audio manufacturers involved, but the half-way stage of PK, but even the sound of the telephone companies do not want to receive — in fact, he did not want to find more sound to contrast, only he did in aesthetic fatigue after lost, even feeling which sound almost alike, who however, whoever ultimately not only not selected to better audio, but contrary to the intention to promote research relationship or ability of the audio company took engineering list, even if they sound may not be so good!

In fact, if you use the "soft PK" means, in addition to left and right of selection ideas, technology, and you can too. So, how to choose the most suitable for their own good sound?

In fact, right valid method is simple: start with the sound, sound effects, the largest Terminal sound equipment – speakers, because sound system sound, sound or bad sound quality, or about 70% of the shares, and sound system can be long and stable work and speaker of the reasonableness of the power and design.

To the author for almost 20 years in musicians, DJ to professional audio engineer career summarizes some experience and a simple method, do the following:

1. preparation of a selection of accessories designed for the camera (also called PK machine, you can use the remote control to switch between a direct immediate or only one set of speakers and amplifier), or a set of features similar PK (PK-line approach as described below), in the same venue where the speaker at almost the same location, using the same sources, the same story for the first level, the same or different categories of music, the same amplifier (preferably full professional power amplifier), the same-channel comparison to on-the-fly switching power, PK sound timbre timbre and sensitivity. PK with fore-school bass are hitting the twelve o'clock position (i.e. without debugging), using straight out of the way. Because if you do not have good good singing the tune, and then fine-tune even better listen better to sing. Remember: sound source (CD player or PC VOD VOD) two-channel output terminals should be set into a two into one out of the Lotus flower head, just a line connected amplifier, because modern recordings often different sound input left and right channels, respectively, around two-channel sound is not the same, the so-called "left right ring sensibly! if you use the control panel" around two signal lines simultaneously access PA, hard on the two channels to switch the PK two speakers, it's not fair nor reasonable.

Speakers and disadvantages that can be measured in several ways:

1. speaker sound good (sharp, soft, clean, structured), tone standard (bright, natural, balanced) and restore the good as well, while poor. On the speakers sound timbre is best familiar with your own playlist, usually with Europe and the original pop can, because this kind of songs music element contains the human voice, jazz drum, electric piano, bass,guitar, covers from 40Hz-20KHz band of all sound. The human voice can only test for high school bass, go to the super low not to treble the subwoofer's band, if you want to test the ultra high-pitched and subwoofer performance, or use electronic dancing music or purely onsite Edition jazz drum with bass music.

In addition, his voice is the best auditions for the tool, only 5-6 from ¦ò-¦ò 7-1-2-3 |-| 4-5-¦ò sequentially moderate Hyung sang (of course, you must first ensure that their Hyung sang not go tone), these notes from low to high tone band have to sing it is tantamount to a test compares the two speaker balance of tone and intonation. Can A speaker has finished the whole sing there before switching to B speaker whole length sing there, can also be A speaker to sing a tone to switch to after singing the same B speaker sound, so return instant switching between the legislative award winning or losing.

Usually design reasonable, balanced frequency response curve of the singing voice of easy sound natural, balanced, smooth, and the design is not reasonable, balanced frequency response curve, not the speaker is a singing tone sings naturally, some audio and singing sensation due excessively prominent and strange, but some sound singing is very laborious.

In practice, given undue prominence of tone is the sound frequency response curve has a peak elevation of sake, the uplift of the most easily enable microphone peak of Whistler (flying miles), and sings laborious code because the band frequency response curve has a deep Valley (that is, lack of sound). "Peak and Valley" are taboo, direct sound had destroyed the music of balance and natural beauty.

Test for speaker sound characteristics in addition to the available voices, instruments, comprehensive songs, with the way the test yourself humming sound is also very reasonable, because one's own voice pitch and features the most understanding. Do not think that the only star level can distinguish sound because the sound will be used to meet the needs of ordinary people singing entertainment! man may not be able to sing very well, but what is the "sing well" and what is "good singing" or understand.

2, speakers high sensitivity than sensitivity low. Because of the high sensitivity of the sound box easy to push, but the low sensitivity of speakers need greater power amplifier power to push the power consumption of power and increased instability.

Speaker sensitivity level with the same power amplifier, the same channel, the same audio source to switch instantly would know: high sensitivity sensitivity of loud, low voice certainly small.

3. speaker power much better than small power. Because the speaker power can bear's power is also much more stable, even to the very loud or distorted, is not easy to get burned, and the speaker's power is a little on the small number of distortion, and loudly is easy to burn out. Test the power of dance music rhythm strong to detect, as follows:

A: first PK PK machine or line switch to one speaker, the question of music slowly by hand afterwards from left to right rotation power amplifier volume knob, listen to speaker distortion performance when feel clear distortion sound, mind power amplifier volume knob position and on-site sound loudness, quickly put the volume knob to zero.

B: the PK or PK line switch to the other speaker, repeat the above operation, and behold a speaker can withstand more power, which only speakers without distortion sound louder in the State of and more shocking, the speaker sound is more loudly shock, power small then sound small and shock. Typically, when the amplifier self-test to signal distortion when it will light up red.

C: if possible, can be disassembled speakers check contrast loudspeaker unit – magnetic steel and voice coil high power absolute unit, magnetic small voice coil is a small unit power certainly small.

4, speakers high sensitivity and power, cost, reliability, high stability and high value, low power and small sensitivity to sound cost low, the stability is slightly worse, using the value or lower.

5. private room speaker sound clear, soft, natural tone real bright, singing easily without screech (common name: flight miles), on the other hand the difference. As a private room speaker, microphone and voice performance is important, sings easily than sings better hard, because the general public is not necessarily understand music or art, but sound good singing, vocal singing easily or not, that's the vast majority of people are aware of.

6. frequency wide narrow than the frequency response. For example: A speaker's frequency response from 43 ~ 18KHz, B speaker is 50 ~ 16KHz, then listen to sense must be A sound more low, more delicate, as if to hear more music elements, by contrast (instant switching parties know) B speaker may feel less of the "listen to some music elements", and may be less a number of exciting "aura".

Second, pick out the comprehensive (vocal music, musical instruments, music, dance music, music and phone voice) represent the best of speakers, with the only speaker to PK amplifier. Methods and measuring the advantageous conditions as follows:

1. use the same sources, the same is only recognized as the best speakers, the same piece of music, by PK machine or line instant switch to PK PK contrast two amplifier, monitor switch instant sound, sound and music trends change, the final selection of the best live performance of the amplifier.

2, power amplifier power if the sound is great, the speaker will be strong and powerful, dynamic, rhythm, and small power clean amplifier sound will feel some deficiency, the sound will be slightly smaller.

3, power amplifier power cost is high, the power of small cost is low. In addition a large enough with power amplifier speakers in addition to sound nice push, the more stable the sound system,but power is the equivalent of a speaker or less than the speaker, audio distortion is not nice, easy and more easily burned Horn (danji civil HiFi).

4, good amplifier one of the most important parameter is the sound quality is clean, natural, and structured, listen to the soft, but poor sense amplifier sound quality is not clean, sound, and grains. In the audio source and speaker, disc (music), amplifier performance easier to distinguish between good and bad PK

3. pick out comprehensive best speakers and amplifier, best sound and best amplifier for comparative PK contrast microphone, the microphone must personally sing there, because people who best know their own sound.

Use the same power amplifier, the same speaker, the same level, while inserted before two different microphones, and a right to at any time by troll, microphone or bad quality can be measured in several ways:

1. microphone voice clear and brightBright, natural and sings easily for good, while poor.

2. microphone sensitivity and curve balance for good. Because of this, singing songs to effortless, and voice of truth, smooth and natural.

3. wireless microphone than wired microphone costs high, and sound and stability less well.

4, with a wireless microphone, U segment than the high cost of V is also relatively more stable. Resistance fall of earthquake resistance than do not fall for more useful.

4. pick out speakers, amplifier, microphone, and finally to the fore. Fore in sound systems play a nice touch, chicken little salt, like chicken and delicious, but if you do not put a little salt, is not the "tasty" and play good package room audio system for most of the technologies and the fore. Speaker and former level of relations is like "a priori" and "acquired" conditions, dependent, interact with each other. Fore or bad quality can be obtained from the following measure:

1, the former level of functionality, the more the better in theory. The fore is the private room sound Tuning Processing Centre, adjust tone pivotal role.

2. balanced bracket, the more the better. Because the vast majority of the rooms are not necessarily in acoustical sound field of the technical requirements to the decoration, the acoustic field flaw inevitable, to compensate for this kind of sound field flaw must have enough balance to adjust.

3 DSP fore band parametric equalizer and optional frequency than fixed-frequency point and non-parametric equalization. Because FM point and parametric equalizer lets engineers under the room sound field characteristics for more precise tuning to enable audio sound play correctly, the sound quality better

4, DSP or analogue fore sounds are clean and natural as well, on the other hand the difference.

5. simulation of the fore is double-good than single reverb reverb. DSP reverberation is almost without too much difference, but on debugging, technical and artistic feeling more demanding.

Total section

This audio selection mode called "hard PK", like the arena, the winner of the victory or defeat by real talent, not as soft as you can with PK technology level and promote adaptability and opportunist. Only the hard way is most PK saves time and directly effective, because the sound quality is good and the bad, the tone balance or not, some through instant switching back and forth can distinguish out, especially the light is not easy to sing, sing good, more is available through instant switching can introduce award winning or losing.

Some manufacturers or engineering Chamber of Commerce said that "sound to complete an audition to play the best results", this statement in a few years ago I still have some truth, but when mainstream manufacturers are taking the curve smoothing, sound balance as a standard today, a good speaker and good amplifier standard is consistent between different brands, speakers and amplifiers are interoperable. The speakers do manufacturers usually on the sound level of cognitive understanding is quite high, so it can be said that the speakers the best manufacturers, the amplifier will not be sent. Of course, the sound quality is good, the tone is not the absolute best, because the sound preferences is very subjective, it's like looking at beautiful women as men: Yan thin ring fertilizer can beauty, turnip greens all something to love!

The competition is increasingly fierce, Casino sound effects. Sophisticated investor does not deliberately choose to reduce the costs and conditions of the sound, because for the entire Casino, the audio portion of the investment is not a "big head", but places a commencement can be started, making it a successful and long, reproducing Changxing sound effects and stability but can affect the success or failure. In PK frequent sound during the warring States period, interpersonal relationship is very important, but if you happen to have a set of sound effects, power, sensitivity, frequency response, sound pressure and so hard to Lectra's clash of audio equipment, whether it be soft or hard PK PK, results will be half the work!